Operating support



June 23, 1931. L. M. WILSON OPERATING SUPPORT Filed Aug. 2, 1927 4Sheets-Sheet l 5 [HM Ob 9? E m d m .m u N. m m RR. v o o m JMIJ J.|| oms" 6 n r i w b 9 0 0 m @6 v a bm mm Mug 9% u ,A mm, A H mm hm W .Lm, a Na 1 w WITNESSES 7% M L. M. WILSON OPERATING SUPPORT 7 Filed Aug. 2,,1927 June 23, 1931. I

4 Sheets-Sheet 2 DOW J. 1 a. mi \w 5% m m, Om 1 m W bN mi rll f NQ ba m@YI 3 9w Mm ATTORNEYS Jun; 23, 1931. L. M. WILSON OPERATING SUPPORTFiled Aug. 2. 1927 4 Sheets-Sheet 3 INVENTOR L. M l/l/L'lsom ATTORNEYSJune 23, 1931; 1.. M., WII. .SON ,0

OPERATING SUPPORT Filed Aug. 2, 1927 4 Sheets-Sheet 4 I I 1 I I INVENTORI L.M Wilson ATTORNEYS Patented June 23, 1931 LEE M. 'WILSGNQOFLOS'ANGELES, CALIFORNIA oriinnriiie surron'r Application fiii August '2,1927. Serial No. 210,108.

This invention relates to improvements in operating supports or tablesgenerally, and

more particularly to a type of such supports or tables adapted for useby chiropractors and other practitioners in the performance of theirmanipulative or and adjustments of the h other operations on uman body."

The principal object of the invention is to provide for a support setforth, and one of a mechanically construction and arrangement adapting113 as an essential part of particularly for use the oflice equipment ofor table of the type refined a chiropractor or other similarpractitioner, and which enibodies certain novel features whereby to bequickly and easily set up for use, collapsed into compact form forstorage, or for transporting from one point or place of use to anotheras may be desired or necessary from time to time. 7 7

1th the foregoing an po'rta-iit objects in view, SlClGS 111 the certainnew dother equally iniand useful coinbinations construction and arranement of v 7 ,a parts as will be hereinafter more fully described, setforth in the appended claims,

and illustrated in the accompanying drawings, in which igure 1 is aperspective View of apr'actical form of the invention,

Figure 2 is a vertical longitudinal section taken on the line 22 ofFigure 3 is a bottom same,

Figure 4 is Figure 1, plan vieW of the a vertical transverse sectiontakenon the line H of Figure 2,

Figure 5 is a side ele when collapsed transportation,

vation of the same and ready for storage or Figure 6 is aperspectiveview of one of the end sections of the apparatus, and showingthe under side portion of the same and the manner of packing certain ofthe de tachable or collapsible portions thereof,

Figure 7 the end sections,

Figure 8 is an enlarge tical section taken on th ure 4,

is a similar view of the other of d fragmentary vere line 8 8 of F igtheinvention re- Figure 9 is a similar sectional view taken on the line -99of Figure 2,

Figure 10 is an enlarged longitudinal of Figure 3,

Figure 11 is a perspective view, partly in section, of a locking mecertain of the movable parts of the in adjusted position, a

chanism for securing device F igure 12 is a perspective view of one ofthe detents or holding mechanism.

dogs of the locking Referring to the drawings, wherein similarcharacters of reference designate corresponding ia-rts throughout theseveral views thereof, the support or table proper consists generally ofthree top sections 10, 11 and 12 disposed in longitudinal aligninent andnormally in a horizontal'plane .Wltll respect to thefloor level.

10 is preferably of a equal to the combined tions 11 and 12, When Thesection length substantially lengths of the sec the latter are disposedin their normally horizontal and end to end abutting positions. topsections 10, 11 and 12 are Each of these preferably up 'holster'ed ontheir upper sides and on their opposite side and end edges,substantially as shown.

The top section 10 is supported for a substantial portio nof its length,inwardly from its outer end, on a boxing cons sting of an outer end Wall13 and oppositely disposed side Walls 14 and 15 secured at their'outerends to the opposite ends of 13. This boxing is, in turn,

the end Wall supported on outer oppositely disposed vertical legs 1and.17 and inner oppositely dispcsed n.-

clined legs 18 and 19.

and the inner leg-1'8, at

are connected together The outer leg 16 "one "side offthe table, inproperly spaced relations at their upper ends a cross 20, and at theirlower'ends a similar cross bar 21, While thepair of legs 17 and 19 areconnected together at their up er ends by a cross bar 22. Immediatelybeio'vv this 1'11 per cross bar 22, of the legs 17 and 19, is anothercross bar 23, the purpose of which will be hereinafter m The outer legs16 and l ore fully explained. 7 are hinged at their fragmentary anddetail taken on the line 10-10 upper ends, as at 24 and respectively, tothe inner faces of the side walls 14 and 15, immediately adjacent thecorners formed of the connected ends of the latter with the end wall 13,while the inner legs 18 and 19 are similarly hinged, as at 26 and 27, tothe inner faces of the inner semi-connected end portions of the sidewalls 14 and 15.

As shown in dotted lines in Figure 4, the coinplcmental legs 16 and 18are to be folded inwardly and upwardly to a horizontal position betweenthe opposite side walls 4 and 15, and the opposite side legs 17 and 19are to be similarly infolded to a position immediately beneath the legs16 and 18, when desired, and after the lower cross bar 21 has beendetached from the lower ends of the legs to which it is usuallyconnected. T 0 permit of this infolding of the opposite leg sectionsthus provided, the complemental legs 18 and 18 are slightly longer thanthe legs 17 and 19, and, as a consequence thereof, project for acorrespondingly gr ater distance upwardly at the inner side of the adjacent side wall 14, so that the hinge connections of the same to thelatter lie in a pabove that defined by the position of the hingeconnections between the legs 17 and 19 with the inner side of theopposite side wall 15. A hook member 28 is pivoted to the outer sideedge of the leg member 16 for engagement with a compleinental eye or lug29 carried by the leg 17 whereby to retain the leg sections in theirnested or folded positions.

Extending between the side walls 14 and 15 adjacent their innerconnected ends and spaced sl ghtly below their top edges is a cross bar30, which is preferably formed of a fiat strip of metal having itsopposite ends angularly bent downwardly to provide depending portions 31and 32 disposed in abutting relation to the opposed surfaces of the sidewalls 14 and 15 to which they are secured by suitable fastcnings The topsection 10 is secured to this cross bar by means of the spaced hinges 34and and is sustained in its normally horizontal position on the topedges of the end and side walls 13, 14 and 15 by means of a hook member36, pivotally secured on the under side of the top 10 and arranged forengagement with an eye or lug 37 secured in the inner surface of the endwall 13.

To sustain the oppositely disposed leg sections in set up position andagainst accidental infolding, a transversely disposed brace member orbar 38 is hingedly connected for horizontal hinging movement, as at 39,to the inner leg 18 and, when operatively disposed, has its other endabutted against the inner side of the intermediate cross member 23carried by the complemental leg members 17 and 19. A keeper plate 40 issecured in position on the inner side of this intermediate cross member23 in line with the brace member 38, and is apertured, as at 41, to beengaged by the angularly bent end 42 of a sliding lock bar 43 mounted inoppositely arranged pairs of spaced guides 44 secured on one side of thebrace member 38, when the angular end portion 42 is projected outwardlyof the free end of the latter for the purpose. The inner end of the lockbar 43 is formed to provide an eye 45 in which a draw link 46 ispivotally engaged. This draw link 46 is also engaged over a draw lever47, which is pivoted at one end, as at 48, to one end of an adjustableplate 49. This sliding plate 49 is formed to provide an intermediatelydisposed and longitudina-lly extending slot 50, which is engaged overthe headed end of a lug or rivet 5'1 secured in the brace member or bar38. The end of the sliding plate 49, opposite to its pivotal connection48 with the draw lever 47, is angularly bent to provide for an outwardlyextending portion 52 having a screw threaded aperture opening throughthe same for the engagement therein of an adjusting screw or bolt 53,which is also in threaded engagement with and extend through acomplementally threaded aperture opening through an outwardly bent endportion 54 of a fixed plate member 55 secured in position on the bracemember 38 by means of fastenings 56. The several parts of this lockingmechanism are arranged in longitudinal alignment at one side of thebrace member 38, substantially as shown in Figures 4 and 8, and theangular end 42, of the sliding lock bar 43, is to be moved into and outof engagement with the keeper plate 40 upon the proper manipulation ofthe draw lever 47, as will be readily obvious, while a proper adjustmentof the parts will be easily effected by the operation of the adjustingscrew or bolt 53. A stop 57, preferably in the form of a nut threaded onan intermediate portion of the adjusting screw or bolt 53, between theupturned portions 52 and 54, of the sliding plate 49 and the fixed plate55, is provided to sustain the screw or bolt 53 in any desired positionof adjustment, and to such end is to be moved into abut-ting relation tothe adjacent side of the angular portion 54, of the fixed plate 55for'the purpose, after each adjustment of the screw or bolt 53 has beenmade. A resilient finger 58 is secured at one end, as at 59, to thesliding lock bolt 43, and is arranged to have its free end to bearagainst one side of the draw link 46 in a manner to force the lattertoward the opposed face of the brace member 38, and to maintain the samegenerally in its aligned position of operation with the other parts ofthe locking mechanism. As shown in Figure 4, the brace members 38 ispreferably made from a suitable length of substantially U-shaped angleiron, whereby the parts of the locking mechanism, as above described,

will be entirely within the channelled side of the same.

The top section 12 is similarly supported on the upper side of a boxingconsisting of the end wall and the oppositely disposed side walls 61 and62, which are secured to the opposite ends of the end wall 60 at theirouter ends. This boxing is, in turn, supported on outer oppositelydisposed vertical legs 63 and 64 and end leg 63 and the inner leg 65, atone side of the table, are connected together in preper'ly spacedrelation at their upper ends by a cross bar 67 and at their lower endsby a similar cross bar 68, while the opposite pair of legs 64 and 66 aresimilarly connected together at their upper ends by a cross bar 69.Immediately below the upper cross bar 69 ofthe legs 64 and 66, issecured another cross bar 70. The outer leg members 63 and 64 are hingedat their upper ends, as at 71 and 72 respectively, to the inner faces ofthe side walls 61 and 62, while the inner'l'eg members and 66 aresimiliarly hinged thereto bymeans of the hinges 73 and 74. Thecomplemental legs 63 and 65, atone side of the table, are to be foldedinwardly and upwardly on their hinges 71 and 73 to a positiontransversely within the boxing after the manner of the leg members 16and 18 of the other section of the table, and with secure the parts infolded position.

To sustain the oppositely disposed leg sections 63, 64'and 65, '66, inset up position, and against accidental infolding, a transverselydisposed brace member 7 5 is hingedly connected for horizontal swingingmove ment,'as at 76, to the inner side of the inner leg member 65 and,when operatively dis posed, has its other end abutted against the innerside of the intermediate cross bar 70, carried by the complemental legmembers 64 and 66. A keeper plate 77 (Figures 1 and 2) is secured inposition on the inner side of the cross bar in line with the bracemember 75, and is apertured, to be engaged by the angularly bent endportion of a sliding lock bar 80 as in the preceding latch means mountedin oppositely arranged pairs of spaced guides 81 secured on one side ofthe brace member 75, when the angular end portion 79 is projectedoutwardly of the free end of the latter for the purpose. The inner endof this look bar 80 is formed to inner oppositely disposed inclined legs65 and 66. The outer provide an eye '82 in which a draw "link 83 ispivotally engaged. This draw link 83 is also engaged over a draw lever84, winch, in

turn, is pivoted at one end, as at '85, to one end of an adjustableplate 86. This' adjustable or sliding plate 86 is formed to provide anintermediately disposed and longitudinally ektending slot not shownwhich is engaged over the headed end of a lug or rivetnot shown securedin the brace member or bar 75. The end of this sliding plate 86,opposite to its pivotal connection with the draw lever 84, is angularlybent to provide for an outwardly extending portion or lug not shownhaving ascrew threaded aperture opening through the same tor theengagement therein of an adjusting screw or bolt 90, which is also inthreaded engagement with and extended through a complementally threadedaperture opening through an outwardly bent end portion 91 of a fixedplate member 92. This plate 92 is secured in position on the bracemember 75 by means of suitable fastenings 93. All of the several partsof this locking mechanism are arranged in longitudinal alignment at oneside of the brace member 75, substantially as is shown in Figure 7, andthe angular end 79 of the sliding lock bolt 80, is to be moved thekeeper into and out of en-gagement'with plate 77, upon a propermanipulation of the draw lever 84, as in the first instance of theoperation of this mechanism, The parts are to be properly adjusted byturning movements being imparted to the-bolt or screw 90, and are to besecured in adjusted position by means of a stop 94, preferably in theform of a nut threaded onto the belt or screw 90, between the upturnedportion of the plate 86 and the portion 91 and the fixed plate 92, andto such end is to be moved into abutting relation to the adjacent sideof the angular portion 91,. of the fixed plate 92, for the purpose,after each adjustment of the bolt or screw has been made. A resilientfinger 95 is secured at one end to the sliding bolt 80, and is arrangedto have its other end bear against one side of the draw link 83 in amanner to force the latter toward the opposed face,

of the brace member 75 and to maintain the lock generally in its normalposition oi operation. As in the first instance of this bracing of thelegs of the table supporting tions, the brace member 75 is made from asuitable length of substantially U-shaped angle iron, with the locking'mechanism housed within the channelled free end thereof.

The top 12-, of the table or couch, is to be fixedly secured inhorizontal positionon the top edges of the end wall 60 and the sidewalls 61 and 62 of the boxing formed thereby, as will be hereinaftermore fully explained, while the intermediate top section 11 is hingedlyconnected, as at 96 and 97, directly to the inner side edge of the topsection 12, and is normally supported in a horizontal plane commonthereto and to the top section 10. The inner side edge of the topsection 12 is disposed in the vertical plane of the inner end edges ofthe side walls 61 and 62 of the boxing, so that the intermediate topsection 11, by reason of its hinge connections 96 and 97, with the topsection 12, is free for unobstructed swinging movements in a downwarddirection between the top sections 10 and 12. The top section 12constitutes the head and chest support for a patient laid on the tableor couch, the section 11 the abdominal support, and the section 10 thesupport for the lower extremities. To admit of the lengthening andshortening of the table, as shown in Figures 1 and 3, the lower cross orlongitudinal bar 21, of the supporting legs 16 and 18, of the table orcouch section supporting the top section 10, and the complemental crossor longitudinal bar 68 of the legs 63 and 65 of the table or couchsection. supporting the top sections 11 and 12, are projected inwardlytoward one another inwardly of the inner legs 18 and 65 respectively,and these projected end portions are provided at their extreme innerends with outwart ly directed hook elements 98 and 99, which arearranged to engage over the intermediate portion of the top edge of alongitudinally extending connecting member or bar 100, which, in turn,has inwardly directed hook elements 101 and 102 secured at its oppositeends for engaging the top edges or" the bars 21 and 68 respectively.These several bars 21, 68 and 100 are supported on or immediately abovethe floor surface, when properly positioned and connected, substantiallyas is shown in Figure 1. By this manner of sliding connection, theoppositely arranged table sections are slidable one relatively to theother, whereby to be lengthened or shortened as may be necessary toaccommodate persons of different heights.

As shown in Figure 4, when the opposite leg sections 16, 18 and 17, 19are folded inwardly of the boxing formed by the end wall 13 and the sidewalls 1 1 and 15, the lower bar 21 is to be detached from the legs 16and 18, and the brace member 38, together with the locking mechanismcarried thereby, is to be detached at its hin e connection 39 with theleg member 18, and these parts will be inserted endwise into the inneropen end of the boxing above the leg section formed by the leg members16 and 18. Similarly, when the leg sections 63, 65 and 6 1, 66 areinfolded within the boxing formed by the end wall 60 and the side walls61 and 62, of the other table or couch section, the lower cross bar 68and the brace member 7 5 will be detached from normally operativepositions, and will be nested within this latter boxing above theuppermost intolded leg section formed by the leg members 63 and 64.

Extending longitudinally and centrally beneath the top section 12 andthe top section 11, is a bar l03, which is preferably in the form of asuitable length of inverted U-shaped channel iron, and has one endhingedly secured, as at 104, to the under side of the top section 12immediately inward of the end wall 60 of the upper boxing of this tablesection support, and its other end normally engaged in the invertedU-shaped channel of a guide bracket 105 secured on the under side of theintermediate top section 11. The opposite side walls of the channel ofthe guide bracket 105 are inturned to provide guide flanges 106 tosupport the opposite ends of a cross pin 107 carried in a loop 103formed at the engaged end of the bar 103, whereby the cross pin 107 willhave sliding movement on these inturned flanges 106, when the topsection 11 ils depressed relative to the fixed top section Supported attheir outer opposite ends in the complemental side walls 61 and 62, andarranged in transverse alignment beneath the inner edge portion of thefixed top section 12 to either side of the longitudinal bar 103, are apair of fulcrum bars or rods 108 and 109, which have their inner opposedends engaged in apertures formed in angular supporting brackets 110 and111 respectively. Looped around the fulcrum bar or rod 108 are theintermediate portions of a pair of substantially parallel tensionsprings 112 and 113, which have their free ends at one side of thefulcrum bar movably enga ed in parallel guide channels or grooves formedin a guide plate 114 secured at the under side of the fixed top section12, and their opposite free ends similarly engaged in parallel channelsor grooves formed in another guide plate 115 secured in proper positionon the under side of the intermediate top section 11. Similarly loopedaround the fulcrum bar or rod 109 are the intermediate portions of apair of substantially parallel tension springs 116 and 117, which havetheir free ends at one side of the fulcrum bar or rod slidably engagedin parallel channels or grooves formed in a guide plate 118 secured atthe under side of the top section 12, and their opposite ends in thechannels or grooves of a complemental guide plate 119 secured on theunder side of the intermediate top section 11.

To normally sustain the longitudinal bar 103 rigidly and to opposeanypossible accidental downward swinging movement of the same on itshinge connection 104 and, consequently, to similarly prevent suchaccidental depression of the intermediate top section 11 and its hingeconnections 96 and 97 with the inner end edge of the top section 12, thelower edges of the flanged side walls of the bar 103 are engaged by theinturnedend portions 120 and 121 of a pair of detents or dogs 120 and121 depending at opposite sides of the'bar 103 frompivo'ts 122 and 122:engaged in pairs of spaced ears 123 and 123 .on the upper side of asupportingiplate :124,'the latter being provided with a-suitably slottedopening beneath each of the pivots :122 and 122 through which thedetents or dogs 120 and121 operate. The supporting plate 124 issubstantially llshaped and has the top edges of its :flange portionssecured in abutting relatiento the under side of the top section 12bymeans of bolts or'thelike 125-being passed upwardly through alignedopenings in the plate 124,

the solid base portion ofthe top SQCelOD 12,

and a'sustaining plate 126 resting on the upper-side of:the latter. Thedetents or dogs 120 and 121 are formed with arms 120 and 121 extendinginwardly above their pivots 122 and 122 in alignmentwith and toward eachother. The free ends of the arms 120 and 121 are preferably bevelledinwardly from small depending portions, substantially as shown inFigures 9 and 12, and have the latter engaged within the upper open endof a coiled spring 127 supported in vertical position centrally of theupper face ofthe supporting plate 124. This spring 127 acts at all timesto tension the detents or dogs 120and 121 toward operative-positions. Toeifect a release of the detents 'or dogs 120 and 121 from lookingengagement with the longitudinal bar 108, an operating rod 128 extendsinwardly from theside wall 61 of theboxing support of the top-section12, and is journalledfor necessary turninglmovements in the flangedportions-of the supporting plate 124,-an operating hand grip 128 beingprovided at its outer end, as shown in Figure 11. Secured on the rod 128medially of the portion thereofextending between the side flanges ofthe'plate 124, is an arm 128 arranged to have its free end rest-inoverlying relation on the adjacentinner 'endsof the arms 120" and 121,of the detents or dogs 120 and 121, so that,-when the rod 128 is turned,improper direction, this end of the-arm 128" will be depressed and forcethe arms 120 and 121" downward against the tension of the spring 127.WVith the downward movement of their arm portions 120.and 121", thedetents or dogs120 -and 121 are swung outwardly from the opposite sidesof the bar 108 until their lower inturned end portions I 120 and 121"disengage from the lower edges oflthe depending flange portionsiof'thelongitudinalbar 103, whenthe latter bar 103 and the-intermediate topportion 11 will be sustained in :their normal horizontal positions-bytheaction of the several springs 112.

113, 116 and117. The detents or dogs 120 and 121 are-identical in form,and, as shown in Figure 12, the detent or dog 120 has the free edge ofits lower inturned end portion 120 reduced in thickness by beingbevelled its lower side, whereby these reduced edges of both 'detents ordogs will be adjustably engaged either with-the lower edges of thefianges-of-the bar 103'0r any one'of the several parallel grooves 103'formed in vertical series inthe-outer faces of the said flanges. Thelower end portion of each-of the'detents or dogs 120 and 121 are ofsubstantial width, and, as shown in Figure 12, in connection with thedetent or dog 120 only, the upper end portion-of the latter islongitudinally split to provide pivot engaging ear portions 120 whichare twisted, as at 120 into necessary parallel relation for thereception of the pivot in thealigned openings provided in thesam'e forthe purpose. The arm portion 120 extends .medially of the ear portions120 on a curved line outwardly and upwardly therefrom,

and is then bentsharply inthereverse direc- I tion and intosubstantially right angular relation with respect to thelower bodyportions of the detent or dog, substantially as shown. x

In the operation ofthe table or couch as thus constructechthe two endsections will be placed in alignment with the inner end edge of the topsection '10 either abutted against the opposed end edge of theintermediate top section 11 or spaced therefrom, when the inwardlyprojecting and aligned lower bars 21 and longitudinal bar 100, which,when in place, will have intermediate portions of its top edge engagedby the hooks 98 and 99, of the bars 21 and 68, and the hooks 101 and 102carried at its opposite ends, similarly engaged'over the top edges ofthe bars 21 and- 68 complemental thereto. As thus coupled, the oppositetable or couch sectionsmay be adjusted toward or away from each other ortorso resting on-the intermediate top sec-' tionll, and the extremitieson the longer top section 10. In the initial placing of a patient on thetable or couch, the intermediate-top section 11 is preferably sustainedin its normal horizontal of the sections 10 and 12 by the supportinglongitudinal bar 103 k being locked against 68 will be coupled by theposition in the plane movement by the detents ordogs 120 and 121engaging the same for. the purpose.

For effecting certain manipulations; or movements to the extremities ofa patient,

the hook 36 will be disengaged from its keeper or eye 31, when the topsection 10 will befree for vertical swinging movements onits hingeconnections 34 and 35, and when its outer end is elevated, the inner endthereof will be lowered simultaneously. Similarly, if treatments are tobe performed on the abdomen or the intermediate portions of the body,the operator will grasp the handle 128" and manipulate the same to turnthe rod 128, when the arm 128 will depress the inner ends of the arms120 and 121, of the detents or dogs 120 and 121, whereby the lowerinturned end portions 120 and 121 of the latter will be disengaged fromthe lower edges of the flanges of the longitudinal bar 103, or from anyone of the several grooves 103 in the outer faces of the said flanges.The bar 103 will now be free for downward swinging movements on itshinge 104, as will also be the intermediate top section 11 on its hinges96 and 97, whenever necessary force is imparted to the stop section 11to overcome the tension of the springs 112, 113, 116 and 117, which actto sustain the top section 11 and the bar 103 in normally disposedhorizontal positions, or to return the same to such position after eachdownward swinging movements of the same. \Vhen it is desired to againretain the top section 11 and the supporting bar 103 against movement,the rod 128 will be turned in a reversed direction, when the depressingaction of the arm 128 will be removed from the spring 127, and, byreason of the expan sion of the latter, the arms 120" and 121", of thedetents or dogs 120 and 121, will be forced upward to normal horizontalposition, and swing the latter on their pivots 122 and 122', when thelower inturned portions 120' and 121 ill again engage with the loweredges of the side flanges of the bar 103 or with any one of the severalgrooves 103'. in the engagement of the lower portions of the detents ordogs 120 and 121 with any one of their complemental grooves 103", thetop section will be correspondingly sustained in a more or less of adepressed position depending upon which of the vertical sequence of thegrooves 103 are so engaged.

To render the table or couch easily portable from one place of use toanother, and with the supporting leg sections and the other detachableportions folded and nested within the supporting boXings beneath the topsections 10 and 12, substantially as shown in Figure 1, the two parts ofthe table or couch will be brought together with the inner open ends ofthe boxin s disposed in abutting relation, and the projecting inner endportion of the top section 10 extending across and enclosing the openlower side of the supporting boxing of the top section 12, while theintermediate top section 11 is similarly extended alongside and enclosesthe lower open side of the supporting boxing of the top section 10,substantially as shown in Figure 5. \Vhen assembled in this position,the parts or sections will be secured together by means of oppositelydisposed fastenings 129 and a hand grip 130 will be provided at one sideof the assembly for convenience in handling. This hand grip 130 ispreferably provided at its opposite ends with snap hooks or the like130", whereby it may readily attached to or detached from eyes or thelike 130 secured in the outer faces of the side Walls 14 and 61 of thesupporting boxings of the top sections 10 and 12 respectively.

Without further description, it is thought that the features andadvantages of the in vention will be readily apparent to those skilledin the art, and it will of course be understood that changes in theform, proportion and minor details of construction may be resorted to,without departing from the spirit of the invention or its scope asclaimed.

Having thus fully described the invention what is claimed is:

1. An operating table comprising spaced horizontally adjustable basesections, a vertically movable top section carried by one of said basesections, a stationary top section carried by the other of said basesections, and an intermediate vertically movable top section carried atthe inner end of said stationary top section, and means carried by oneof said base sections for tensioning the vertical movements of saidintermediate top section, comprising coil springs mounted on saidstationary section and slidably engaging said movable section.

2. An operating table comprising a pair of spacedly aligned basesections adapted for relative endwise adjustments, a top section mountedfor vertical tilting movements on one of said base sections, means forreleasably securing said top section in normally disposed horizontalposition,'a stationary top section carried by the other of said basesections, an intermediate top section hingedly connected to saidstationary top section and in slightly spaced relation with respect tosaid vertical tilting top section, said intermediate top section beingadapted for tension opposed swinging movements between said basesections, and means for releasably securing said intermediate topsection in adjusted substantially horizontal positions, comprising asupporting beam hinged on said stationary section and supporting saidmovable section and detent means for variably positioning said beam.

3. An operating table comprising oppositely disposed base sections, topsections carried by each of said base sections and projecting outwardlybeyond the inner opposed ends of the same, legs carried by said basesections and adapted to be folded inwardly thereof, said base sectionsbeing adapted to be abuttecl in end to end'relation with the projectingend portions of each of the said top sections overlapping the opposite 1wer sides of the adjacent of the base sections, means for securing'saidbase sections together, and a carrying handle extending between saidbase sections at one side thereof.

4. An operating table comprising oppositely disposed base sections, topsections carried by each of said base sections and projecting outwardlybeyond the inner opposed ends of the same, legs carried by said basesections and adapted to be folded inwardly thereof, said base sectionsbeing adapted to be abutted in end to end relation with the projectingend portions of each of the said top sections overlapping the oppositelower sides of the adjacent of the base sections, means for securingsaid base sections together, and a carrying handle extending between anddetachably connecting said base sections at one side thereof in linewith the adjacent of the said securing means.

5. An operating table, comprising a pair of spacedly aligned basesections, a top section mounted on one of said base sections, astationary top section carried by the other of said base sections, anintermediate top section hingedly connected to said stationary topsection and in slightly spaced relation with respect to saic. firstnamed top section, said intermediate top section being adapted fortension opposed swinging movements between said base sections, and meansfor releasably securing said intermediate top section in adjustedsubstantially horizontal positions, comprising a supporting beamhingedly mounted on said stationary section and slidably supporting saidintermediate top section and detent means mounted on said stationarysection for variably positioning said beam relative to said section.

6. An operating table, comprising a pair of spacedly aligned basesections, a top section mounted on one of said base sections, astationary top section carried by the other of said base sections, anintermediate top section hingedly connected to said stationary topsection and in slightly spaced relation with respect to said first namedtop section,

said intermediate top section being adapted for tension opposed swingingmovements between said base sections, and 'means for releasably securingsaid intermediate top section in adjusted substantially horizontal positions, comprising a supporting beam having corrugated side wallshingedly mounted on said stationary sections and slidably supportingsaid intermediate top section and spring pressed detents adapted toengage the corrugations of said beams for variably positioning the same.

7. An operating table, comprising a pair of spacedly aligned basesections, a top sec.- tion mounted on one of said base sections, astationary top section carried by the other of said base sections, anintermediate top section hingedly connected to said stationary topsection and in slightly spaced relation with respect to said first namedtop section, said intermediate top section being adapted for tensionopposed swinging movements be tween said base sections, and means forreleasably securing tion in adjusted substantially horizontal positions,comprising a supporting beam having corrugated side walls hingedlymounted on said stationary sections and slidably supporting saidintermediate top section, spring pressed detents adapted to engage thecorrugations of said beams for variably positioning the same and manualmeans for releasing said spring pressed detents.

8. An operating table, comprising oppositely disposed base sections, topsections carried by each of said base sections and projectin outwardlybeyond the inner opposed ends of the same, legs carried by said basesections and adapted to be folded inwardly thereof, said base sectionsbeing adapted to beabutted in end to end relation with the projectingend portions of each of the said top sections overlapping the oppositelower sides of the adjacent sections of the base and means for securingsaid base sections together.

9. In an operating table, a base member, a top section carried by saidbase member, a top section swingably mounted relative to said firstnamed top section and means for adjustably supporting said swingablesection comprising a corrugated beam swingably mounted on said firstnamed section and adapted to support said swingable top sec tion andmeans on said swingable section for variably engaging said corrugatedbeam.

LEE M. WILSON.

said intermediate top sec-'

